package com.htdata.htiiot.conf;
import java.io.IOException;
import java.util.concurrent.CountDownLatch;

import org.apache.zookeeper.WatchedEvent;
import org.apache.zookeeper.Watcher;
import org.apache.zookeeper.ZooKeeper;

import org.apache.zookeeper.Watcher.Event.KeeperState;



public class AbstractZooKeeper implements Watcher {
	//缓存时间
	 private static final int SESSION_TIME   = 2000;   
	 protected ZooKeeper zooKeeper;
	 protected CountDownLatch countDownLatch=new CountDownLatch(1);

	 public void connect(String hosts) throws IOException, InterruptedException{   
	        zooKeeper = new ZooKeeper(hosts,SESSION_TIME,this);   
	        countDownLatch.await();   
	  }   

	public void process(WatchedEvent event) {
		// TODO Auto-generated method stub
		if(event.getState()==KeeperState.SyncConnected){
			countDownLatch.countDown();
		}
	}
	
	public void close() throws InterruptedException{   
        zooKeeper.close();   
    }  
}
